Add device triggers for Paulmann 501.41 remote

[arnoudkooi]

Proposed change

Add a quirk for the Paulmann 501.41 Zigbee Smart Home Remote. This remote is available separate or included with various Paulmann Zigbee lighting kits. It does not report a model or manufacturer via the Basic cluster, so matching is done using endpoint and cluster signature. The quirk provides device automation triggers for:

• Brightness control (plus/minus buttons)
• Color temperature adjustment (fire/ice buttons)
• Scene recall and storage (S1/S2 buttons)
• A general-purpose power button (on/off/toggle)

Only meaningful, distinguishable button actions are included. Long press release events (e.g., stop_move_step) are intentionally omitted due to lack of distinguishing data in the Zigbee payload.

Checklist

• The changes are tested and work correctly
• pre-commit checks pass / the code has been formatted using Black
• Tests have been executed to verify that the new code works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.18%. Comparing base (7713d81) to head (6cff35e).
Report is 6 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #4013   +/-   ##
=======================================
  Coverage   91.18%   91.18%           
=======================================
  Files         334      335    +1     
  Lines       10862    10869    +7     
=======================================
+ Hits         9904     9911    +7     
  Misses        958      958           

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[arnoudkooi]

Change value to None, this value is to pass the tests here and on line 22

[arnoudkooi]

Thanks for the the automated tests! ✅

Important message:
This device reports "unk_model" / "unk_manufacturer", so these are used literally to satisfy signature validation. In practice, the quirk works by matching endpoint and cluster signature.

For the quirk to use change line 21 and 22
From:

"model": "unk_model",
"manufacturer": "unk_manufacturer",

To

"model": None,
"manufacturer": None,

[TheJulianJES]

"unk_model" / "unk_manufacturer" generally means that the device didn't complete pairing properly.
Can you remove the device and try to re-pair it?

[arnoudkooi]

Updating Zigbee USB dongle fixed it.
The PR is now updated and passed tests.

[TheJulianJES]

Please use a v2 quirk for defining the device_automation_triggers instead.
See this example: https://github.com/zigpy/zha-device-handlers/blob/dev/zhaquirks/sonoff/button.py

Also, we already have some constants defined here: https://github.com/zigpy/zha-device-handlers/blob/dev/zhaquirks/const.py